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Misc

Define location of points

Assign the location of a point by "Absolute" or "Relative" reference (Cartesian coordinates):

  • Absolute (x,y) is the horizontal (x position), vertical (y position) from origin (0,0).
  • Relative (@x,y) is the horizontal (x distance), vertical (y distance) from current or selected point.


Length and Angle: (@l<d) is the distance or length (l) and the angle in degrees from zero (d) from the current or selected point (polar coordinates).


Note that:

Degrees Direction
0 (or 360) is Right / East / 3 o'clock
90 is Up / North / 12 o'clock
180 is Left / West / 9 o'clock
270 is Down / South / 6 o'clock

Refer to Related links below.

Line

2 points [DrawLine]: Draw a line between two assigned points (x,y) (x,y).

Angle [DrawLineAngle]: Draw a line from an assigned point (x,y) defining the start, middle or end of the line and with an assigned length and angle.

Horizontal [DrawLineHorizontal):Draw a horizontal line from an assigned point (x,y) defining the start, middle or end of the line and with an assigned length.

Vertical [DrawLineVertical]: Draw a vertical line from an assigned point (x,y) defining the start, middle or end of the line and with an assigned length.

Freehand Line [DrawLineFree]:

Parallel through point [DrawLineParallelThrough]: Draw a given number of lines parallel to a selected existing line through an assigned point (x,y).

Parallel [DrawLineParallel]: Draw a given number of lines parallel to a selected existing line with a given distance (l) between lines.

Rectangle [DrawLineRectangle]: Draw a rectagle by assigning the points (x,y) (x,y) of two diagonally opposite corners.

Bisector [DrawLineBisector]: Draw a given number of lines bisecting two existing non-parallel lines (e.g. at an angle to each other with or without a common point).

Tangent (P,C) [DrawLineTangent1]: Draw a line from an assigned point (x,y) tangent to an existing circle.

Tangent (C,C) [DrawLineTangent2]: Draw a line tangent to two existing circles.

Tangent Orthogonal [DrawLineOrthTan]: Draw a line tangent to an existing circle and perpendicular to an existing line.

Orthogonal [DrawLineOrthogonal]: Draw a line of a given length perpendicular to an existing line placing the centre at an assigned point (x,y).

Relative Angle [DrawLineRelAngle]: Draw a line with a given length and at a given angle relative to an existing line placing the centre of the line at an assigned point (x,y).

Polygon (Cen,Cor) [DrawPolyline]: Draw a polygon with a given number of sides assigning the centre point (x,y) and point of one vertex (x,y).

Polygon (Cen,Tan) [DrawLinePolygonCenTan]: Draw a polygon with a given number of sides assigning the centre point (x,y) and point of the centre of one side (x,y).

Polygon (Cor,Cor) [DrawLinePolygonCorCor]: Draw a polygon with a given number of sides assigning the two points of one side (x,y) (x,y).

Circle

Centre, Point [DrawCircle]: Draw a circle with a radius given by assigning a centre point (x,y) and a point (x,y) on the circumference.

Centre, Radius [DrawCircleCR]: Draw a circle with a given radius (l) centred at an assigned point (x,y).

2 Points [DrawCircle2P]: Draw a circle with a diameter given by assigning two opposite points (x,y) (x,y) on the circumference.

2 Points, Radius [DrawCircle2PR]: Draw a circle with two points (x,y) (x,y) on the circumference and with an assigned radius (length).

3 Points [DrawCircle3P]: Draw a circle assigning three points (x,y) (x,y) (x,y) on the circumference.

Concentric [DrawCircleParallel]: Draw a circle concentric, with the same centre point, to an existing circle.

Circle Inscribed [DrawCircleInscribe]: Draw a circle inside an existing polygon of four sides or more.

Tangential 2 Circles, Radius [DrawCircleTan2]: Draw a circle tangential to two circles with a given radius.

Tangential, 2 Circles, 1 Point [DrawCircleTan2_1P]: Draw a circle tangential to two existing circles and assigning a centre point (x,y) to establish the radius.

Tangential, 2 Points [DrawCircleTan2]: Draw a circle tangential to an existing circle and define the diameter and placement by assigning two points (x,y) (x,y) on the circumference.

Tangential, 2 Circles, Radius [DrawCircleTan2]: Draw a circle tangential to two existing circles with a given radius (l).

Tangential, 3 Circles [DrawCircleTan3]: Draw a circle tangential to three existing circles.

Curve

Center, Point, Angles [DrawArc]:

3 Points [DrawArc3P]:

Concentric [DrawArcParallel]:

Arc Tangential [DrawArcTangential]:

Ellipse

Ellipse (Axis) [DrawEllipseAxis]:

Ellipse Arc (Axis) [DrawEllipseArcAxis]:

Ellipse Foci Point [DrawEllipseFociPoint]:

Ellipse 4 Point [DrawEllipse4Points]:

Ellipse Center and 3 Points [DrawEllipseCenter3Points]:

Ellipse Inscribed [DrawEllipseInscribe]: Draw a Ellipse inside an existing polygon of four sides or more.

Spline

Spline [DrawSpline]:

Spline through points [DrawSplinePoints]:

Polyline

Polyline [DrawPolyline]:

Add node [PolylineAdd]:

Append node [PolylineAppend]:

Delete node [PolylineDel]:

Delete between two nodes [PolylineDelBetween]:

Trim segments [PolylineTrim]:

Create Equidistant Polylines [PolylineEquidistant]:

Create Polyline from Existing Segments [PolylineSegment]:

Select

Select Entity [SelectSingle]:

Select Window [SelectWindow]:

Deselect Window [DeselectWindow]:

(De-)Select Contour [SelectContour]:

Select Intersected Entities [SelectIntersected]:

Deselect Intersected Entities [DeselectIntersected]:

(De-)Select Layer [SelectLayer]:

Select All [SelectAll]:

Deselect all [DeselectAll]:

Invert Selection [SelectInvert]:

Dimension

Aligned [DimAligned]:

Linear [DimLinear]:

Horizontal [DimLinearHor]:

Vertical [DimLinearVer]:

Radial [DimRadial]:

Diametric [DimDiametric]:

Angular [DimAngular]:

Leader [DimLeader]:

Modify

Attributes [ModifyAttributes]: Allows for modifying the common attributes of one or more selected entities, including:

  • Layer
  • Pen color
  • Pen width
  • Pen Line type

Delete [ModifyDelete]:

Delete selected [ModifyDeleteQuick]:

Delete Freehand [ModifyDeleteFree]:

Move / Copy [ModifyMove]:

Revert direction [ModifyRevertDirection]:

Rotate [ModifyRotate]:

Scale [ModifyScale]:

Mirror [ModifyMirror]:

Move and Rotate [ModifyMoveRotate]:

Rotate Two [ModifyRotate2]:

Properties [ModifyEntity]: Allows for the modification of a single entity's properties, including:

  • Layer
  • Pen color
  • Pen width
  • Pen Line type
  • Geometry (depending on type of entity)
    • Line
      • Start point (x)
      • Start point (y)
      • End point (x)
      • End point (y)
    • Circle:
      • Center (x)
      • Center (y)
      • Radius (l)
    • Etc...

Trim [ModifyTrim]:

Trim Two [ModifyTrim2]:

Lengthen [ModifyTrimAmount]:

Offset" [ModifyOffset]:

Divide [ModifyCut]:

Stretch [ModifyStretch]:

Bevel [ModifyBevel]:

Fillet [ModifyRound]:

Explode Text into Letters [ModifyExplodeText]:

Explode [BlocksExplode]:

Info

Point inside contour [InfoInside]:

Distance Point to Point [InfoDist]:

Distance Entity to Point [InfoDist2]:

Angle between two lines [InfoAngle]:

Total length of selected entities [InfoTotalLength]:

Polygonal Area [InfoArea]:

Other

Order

move to bottom [OrderBottom]:

lower after entity [OrderLower]:

raise over entity [OrderRaise]:

move to top [OrderTop]:


Layers

Show all [LayersDefreezeAll]:

Hide all [LayersFreezeAll]:

Add Layer [LayersAdd]:

Remove Layer [LayersRemove]:

Edit Layer [LayersEdit]:

Toggle Layer Lock [LayersToggleLock]:

Toggle Layer Visibility [LayersToggleView]:

Toggle Layer Print [LayersTogglePrint]:

Toggle Construction Layer [LayersToggleConstruction]:


Block

Show all [BlocksDefreezeAll]:

Add Block [BlocksAdd]:

Remove Block [BlocksRemove]:

Rename Block [BlocksAttributes]:

Edit Block [BlocksEdit]:

Insert Block [BlocksInsert]:

Toggle Block Visibility [BlocksToggleView]:

Create Block [BlocksCreate]:


Zoom

Zoom In [ZoomIn]:

Zoom Out [ZoomOut]:

Auto Zoom [ZoomAuto]:

Previous View [ZoomPrevious]:

Redraw [ZoomRedraw]:

Window Zoom [ZoomWindow]:

Related

Points: http://wiki.librecad.org/index.php/Points

Snapping: http://wiki.librecad.org/index.php/Snapping

http://wiki.librecad.org/index.php/Category:Tools

http://wiki.librecad.org/index.php/Commands

http://wiki.librecad.org/index.php/A_short_manual_for_use_from_the_command_line

http://wiki.librecad.org/index.php/User_Interface

http://wiki.librecad.org/index.php/LibreCAD_users_Manual